[patryn20]

Here’s where I come off as ass, but what do you expect? These are complex systems with millions of moving parts and millions of lines of code. The chances of anyone ever being able to fully secure all systems (physical and virtual) is literally zero.

Combined with truly awe inspiring lifespans (how many coders truly have systems running mostly unmodified thirty years later?) this means that many many defects and vulnerabilities will be discovered over the lifespan of an aircraft.

Add in avionics and flight control upgrades designed to interface with legacy controls, and I consider it a miracle these amazing machines are as secure as they are.

It’s a testament to the engineering that goes into these machines that more stuff isn’t found or (god forbid) actively exploited.